Evaluation of domestic water measurement error: a case study

This study presents a method to determine the operation of the measuring equipment by analyzing the metrological quality and degradation of accuracy, depending on the accumulated volume and the installation time. Different types of counters at three flow rates were tested to assess the evolution of...

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Autores principales:	Andrés A. Mendoza, Holger Benavides-Muñoz
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	apparent losses domestic water meter sub-accounting water meter accuracy water meter degradation Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/e772597ccb82401b99d6e6b5adf9703f
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spelling	oai:doaj.org-article:e772597ccb82401b99d6e6b5adf9703f2021-11-05T13:46:18ZEvaluation of domestic water measurement error: a case study2709-80282709-803610.2166/aqua.2021.025https://doaj.org/article/e772597ccb82401b99d6e6b5adf9703f2021-03-01T00:00:00Zhttp://aqua.iwaponline.com/content/70/2/217https://doaj.org/toc/2709-8028https://doaj.org/toc/2709-8036This study presents a method to determine the operation of the measuring equipment by analyzing the metrological quality and degradation of accuracy, depending on the accumulated volume and the installation time. Different types of counters at three flow rates were tested to assess the evolution of the relative error and to determine the average error curves and rate of deterioration. The volume of apparent losses caused by the inaccuracies of the meters was also calculated. The results of the investigation establish the sub-accounting errors and the annual degradation rate were −15 and −1.88%, respectively for consumption flows below 30 L/h represented by 23% of the subscribers. For flow rates of 120 L/h, the system accounts for a 68% consumption of subscribers and an error of −1.8% and a degradation of −0.14% were recorded. Finally, for consumption flows of 1,500 L/h, the system has accounted for 9% consumption of the subscribers; over-accounting values were obtained generating an average error of 16% and a degradation of 1.68%. It is concluded that the hydrometric district has a sub-accounting error equal to −3.24%, which results in a volume of apparent losses of 1.21 m3/connection/month. HIGHLIGHT This paper proposes a methodology that allows determining the operation of the domestic water meter by analyzing the metrological quality and degradation of accuracy, specifically by the statistical calculation of the weighted measurement error, the annual degradation and the volume of apparent losses of the domiciliary meters installed in urban areas, using a hydraulic bench test.;Andrés A. MendozaHolger Benavides-MuñozIWA Publishingarticleapparent lossesdomestic water metersub-accountingwater meter accuracywater meter degradationEnvironmental technology. Sanitary engineeringTD1-1066Environmental sciencesGE1-350ENAqua, Vol 70, Iss 2, Pp 217-225 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	apparent losses domestic water meter sub-accounting water meter accuracy water meter degradation Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
spellingShingle	apparent losses domestic water meter sub-accounting water meter accuracy water meter degradation Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Andrés A. Mendoza Holger Benavides-Muñoz Evaluation of domestic water measurement error: a case study
description	This study presents a method to determine the operation of the measuring equipment by analyzing the metrological quality and degradation of accuracy, depending on the accumulated volume and the installation time. Different types of counters at three flow rates were tested to assess the evolution of the relative error and to determine the average error curves and rate of deterioration. The volume of apparent losses caused by the inaccuracies of the meters was also calculated. The results of the investigation establish the sub-accounting errors and the annual degradation rate were −15 and −1.88%, respectively for consumption flows below 30 L/h represented by 23% of the subscribers. For flow rates of 120 L/h, the system accounts for a 68% consumption of subscribers and an error of −1.8% and a degradation of −0.14% were recorded. Finally, for consumption flows of 1,500 L/h, the system has accounted for 9% consumption of the subscribers; over-accounting values were obtained generating an average error of 16% and a degradation of 1.68%. It is concluded that the hydrometric district has a sub-accounting error equal to −3.24%, which results in a volume of apparent losses of 1.21 m3/connection/month. HIGHLIGHT This paper proposes a methodology that allows determining the operation of the domestic water meter by analyzing the metrological quality and degradation of accuracy, specifically by the statistical calculation of the weighted measurement error, the annual degradation and the volume of apparent losses of the domiciliary meters installed in urban areas, using a hydraulic bench test.;
format	article
author	Andrés A. Mendoza Holger Benavides-Muñoz
author_facet	Andrés A. Mendoza Holger Benavides-Muñoz
author_sort	Andrés A. Mendoza
title	Evaluation of domestic water measurement error: a case study
title_short	Evaluation of domestic water measurement error: a case study
title_full	Evaluation of domestic water measurement error: a case study
title_fullStr	Evaluation of domestic water measurement error: a case study
title_full_unstemmed	Evaluation of domestic water measurement error: a case study
title_sort	evaluation of domestic water measurement error: a case study
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/e772597ccb82401b99d6e6b5adf9703f
work_keys_str_mv	AT andresamendoza evaluationofdomesticwatermeasurementerroracasestudy AT holgerbenavidesmunoz evaluationofdomesticwatermeasurementerroracasestudy
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Evaluation of domestic water measurement error: a case study

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